Face-flexing technology launches the ball faster and higher to give you tour-level distance and stopping power with forgiveness and feel. The multi-material G400 iron flexes like a catapult as COR-Eye Technology and a top rail undercut launch shots extremely high and far with tighter dispersion. One PING pro said during testing: "This G400 7-iron has turned into my 6-iron but in an 8-iron window."Â